I have a evaporator skid where I have to do a piping change to some steam piping that enters our condensers. As a result of the piping change our steam piping will a U in it where I'm concerned water will build up over time.
In an ideal world I would simply raise all our piping and other...
I've have to program a Quantum PLC for a project that I'm working on and I'm having problems getting some of my FFB's to work properly. I've never used Unity Pro or Modicon PLC's so it's been an interesting couple of days learning it.
I'm trying to use the Totalizer and PID FFB's. I insert...
I have a system where with a pressure loop that's running three pumps on separate VFD's. I'm limited by the number of analog outputs that I have available on my PLC. Is there a product available that will allow me to output one signal and duplicate it on 3 channels?
Thanks,
Jenkins
Hi,
We're pressure testing some (approx 400m) HDPE piping with water and our client has given us a spec that we shall increase the pressure in the pipe to 125 PSIG and maintain this for the duration of the test. After one hour we are required to check for leaks.
Now our problem is that we are...
Hi,
We have a Vacuum Pump that we are trying to gear down to reduce the load on our generator. We've tried using a one of our old VFD's, but all our level switches in our system change state as soon as the drive turns on. Space is limited between the motor and pump as well. Motor face to...
Hi,
Has anybody on here used a Siemens Thermocouple Module for their S7-200 Series PLCs? Part Number: 6ES7 231-7PD21-0XA0.
I might be looking to use them for an upcoming project and I wanted to get a feel for how reliable they are. I use this series PLC all the time and have never had a...
Hi,
I am preparing a bid for one of our clients, and they have asked us to determine what the area classification of the process area is by means of a fugitive emissions study.
I am wondering what's involved with such a study, what's the standards I should use, or is this something typically...
I am currently experiencing problems with running some motors (25 to 30 hp) at reduced voltage. I currently use 230/460 Volt motors and run them with 208V. I know one way around this would be to get 200V motors, but delivery on 200V motors from our vendors are too long to meet our schedule...